DESCRIPTION

The VN770P is a device formed by three monolithic chips housed in a standard SO28 package: a double high side and two low side switches. Both the double high side and low side switches are made using STMicroelectronics VIPower technology. This device is suitable to drive a DC motor in a bridge configuration as well as to be used as a quad switch for any low voltage application. The dual high side switches have built-in thermal shut-down to protect the chip from over temperature and short circuit, status output to provide indication for open load in off and on state, overtemperature conditions and stuck-on to VCC. The low side switches are two OMNIFET types (fully autoprotected Power MOSFET in VIPower technology). They have built-in thermal shut-down, linear current limitation and overvoltage clamping. Fault feedback for thermal intervention can be detected by

monitoring the voltage at the input pin.

■ IDEAL AS A LOW VOLTAGE BRIDGE

■ LINEAR CURRENT LIMITATION

■ VERY LOW STAND-BY POWER DISSIPATION

■ SHORT CIRCUIT PROTECTED

■ STATUS FLAG DIAGNOSTICS

■ OPEN DRAIN DIAGNOSTICS OUTPUT

■ INTEGRATED CLAMPING CIRCUITS

■ UNDER-VOLTAGE PROTECTION

■ ESD PROTECTION

VN770P属于集成电路（IC） > 全半桥驱动器。意法半导体（ST）集团制造生产的VN770P全半桥驱动器器件属于电桥驱动器电源管理集成电路 (PMIC) 系列，包含两个或多个功率晶体管，以及在外部器件控制下将其用作开关所需的电路。这些晶体管通常在内部配置为成对串联连接（称为半桥），因而任意指定晶体管对之间的结点都可以连接至两个电源轨中的任一个。这类器件常用于将控制器件（如微控制器）提供的低电平信号转换为操作执行器（如步进电机或无刷电机）所需的较大功率信号。